Spring-Loaded Lashing Device Counter-Mechanism for Anti-Loosening
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Solution Overview
Problem
Existing lashing devices require time-consuming counter-locking and unscrewing processes, risk of forgetting to tighten the counter bolt, and potential slippage due to loose connecting parts, especially under vibrations or horizontal lashing conditions.
Innovation Solution
A lashing device with a counter means that enables mutual rotation for tightening and counteracting rotation, incorporating a prestressing element using a spring force, and featuring a spindle with threadless sections and prestressing elements like spherical or sawtooth-shaped head elements to facilitate easy and secure locking without additional securing means.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a counter-bolt is used for locking, then the lashing device can be secured against loosening, but the counter-locking process takes a certain amount of time and requires additional manual intervention
Solution Approach 1:
The invention employs a self-locking mechanism where the spring-loaded prestressing element automatically engages with the spindle to prevent loosening. The spring force continuously presses the prestressing element against the spindle, creating automatic locking without requiring manual counter-bolt tightening, thus eliminating the time-consuming counter-locking process while maintaining reliability against loosening.
Solution Approach 2:
The spring prestressing element is pre-loaded and positioned to automatically engage with the spindle upon assembly. This preliminary positioning and pre-loading of the spring ensures that the locking action occurs automatically as the device is assembled, rather than requiring a separate subsequent counter-locking step.
2Reliability
If additional securing means are added to prevent slippage, then the device becomes more reliable under vibrations, but the device complexity increases
Solution Approach 1:
The prestressing element with spring force automatically adjusts and maintains contact with the spindle, creating a self-regulating mechanism that prevents slippage under vibrations without requiring additional external securing components. The spring continuously applies force to maintain engagement.
Solution Approach 2:
The locking and anti-slippage functions are merged into a single integrated prestressing element mechanism. The spring-loaded design combines the locking action with continuous pressure application, eliminating the need for separate securing means while maintaining reliability under vibrational conditions.
3Ease of operation
If a connecting part is loosely arranged between the stretch rod and clamping means, then the device is easier to assemble, but the connecting part may slip during vibrations or horizontal lashing
Solution Approach 1:
The prestressing element automatically maintains connection stability through continuous spring force application. The mechanism self-adjusts to maintain proper engagement without requiring additional securing operations, keeping assembly simple while ensuring stability under vibrations and horizontal lashing conditions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device allows for quick, safe, and reliable lashing without additional components, ensuring secure locking in both horizontal and vertical orientations without the need for extra securing processes, reducing the risk of slippage and forgetting to tighten the counter bolt.
Implementation Method 1
the counter means has at least one prestressing element which acts on the spindle by means of a spring force
Data Source
Figure 1
Figure 2
Figure 3a~4f
AI summary
The invention relates to a device (10) for lashing containers, which is to be fixed between two points which are to be secured to each other, comprising a first clamping means (20), which can be connected to one of the fixing points and which comprises a spindle (21), which extends in the longitudinal direction of the first clamping means (20) and has a spindle thread section (22), a second clamping means (30), which can be connected to the other of the fixing points, a spindle nut (40), which has a spindle thread section which engages in the spindle thread section (22) of the first clamping means (20), and a counter means (41) which is assigned to the spindle nut (40), wherein the spindle nut (40) is arranged between the first and the second clamping means (20, 30). The counter means (41) is configured in such a way that mutual rotation of the two clamping means (20, 30) in at least one direction of rotation, which corresponds to that of tightening the device (10), is enabled, and the rotation in the opposite direction is countered, and the counter means (41) has at least one preloading element, which acts on the spindle by means of a spring force.